:root{--ink-void: #04050a;--ink-900: #070910;--ink-850: #0a0d16;--ink-800: #0e121d;--ink-750: #121725;--ink-700: #171d2d;--ink-600: #1e2537;--ink-500: #2a3145;--graphite-600: #232b3d;--graphite-500: #2d3548;--hairline: rgba(168, 180, 200, .14);--hairline-strong: rgba(168, 180, 200, .26);--hairline-faint: rgba(168, 180, 200, .07);--white-metal: #eef1f6;--silver-100: #cfd6e2;--silver-200: #aeb7c6;--silver-300: #8b95a6;--silver-400: #717c91;--blue-electric: #3d7dff;--blue-bright: #6a9cff;--blue-deep: #1d4fd8;--blue-wash: rgba(61, 125, 255, .11);--violet: #8b6cf0;--violet-deep: #5b3fc4;--violet-wash: rgba(139, 108, 240, .11);--cyan: #46c8d4;--cyan-wash: rgba(70, 200, 212, .1);--warm: #d9a45b;--pass: #45c98a;--pass-wash: rgba(69, 201, 138, .12);--pass-line: rgba(69, 201, 138, .42);--fail: #f2606a;--fail-wash: rgba(242, 96, 106, .12);--fail-line: rgba(242, 96, 106, .42);--unknown: #d7a44a;--unknown-wash: rgba(215, 164, 74, .12);--unknown-line: rgba(215, 164, 74, .42);--m-implemented: #45c98a;--m-demo: #46c8d4;--m-reference: #8b6cf0;--m-spec: #6a9cff;--m-planned: #8b95a6;--m-noconsta: #d7a44a;--font-sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--font-editorial: ui-serif, Georgia, "Times New Roman", serif;--t-exhibit-hero: 6rem;--t-exhibit-page: 2.5rem;--t-display: var(--t-exhibit-page);--t-h2: var(--f7);--t-h3: var(--f5);--t-h4: var(--f4);--t-body: var(--f3);--t-lead: var(--f4);--t-small: var(--f2);--t-micro: var(--f1);--t-code: var(--f2);--f1: .75rem;--f2: .875rem;--f3: 1rem;--f4: 1.125rem;--f5: 1.375rem;--f6: 1.75rem;--f7: 2.25rem;--lh-tight: 1.02;--lh-snug: 1.18;--lh-body: 1.62;--lh-loose: 1.75;--clh-tight: 1.2;--clh-snug: 1.35;--clh-body: 1.6;--clh-micro: 1.45;--track-hero: -.035em;--track-display: -.025em;--track-tag: .16em;--s1: .25rem;--s2: .5rem;--s3: .75rem;--s4: 1rem;--s5: 1.5rem;--s6: 2rem;--s7: 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var(--s5);border-radius:var(--radius);font-weight:600;font-size:var(--t-small);text-decoration:none;transition:top var(--dur-fast) var(--ease)}.skip:focus-visible{top:var(--s4);color:#fff}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}.shell{width:100%;max-width:var(--page);margin-inline:auto;padding-inline:var(--gutter)}.shell--narrow>*{max-width:var(--page-narrow)}.prose{max-width:var(--prose)}.prose>*+*{margin-top:var(--s4)}.prose p{color:var(--silver-200)}.scene{padding-block:var(--scene-y);position:relative}main>.scene:first-child{padding-block:var(--s7) var(--s6)}.scene+.scene{position:relative}.scene+.scene:before{content:"";position:absolute;inset-inline:0;top:0;height:1px;background:linear-gradient(90deg,transparent,var(--hairline-strong) 18%,var(--hairline) 50%,transparent 92%)}.scene-mark{display:flex;align-items:baseline;flex-wrap:wrap;gap:var(--s2) 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var(--ease)}.btn:hover{background:linear-gradient(180deg,#8ab2ff,var(--blue-bright) 58%,var(--blue-electric));color:#fff;transform:translateY(-1px);box-shadow:0 10px 26px #3d7dff6b,inset 0 1px #ffffff47}.btn:active{transform:translateY(0)}.btn--ghost{--btn-bg: linear-gradient(180deg, var(--ink-800), var(--ink-900));box-shadow:none;color:var(--silver-100);border-color:var(--hairline-strong)}.btn--ghost:hover{background:var(--ink-700);color:var(--white-metal);border-color:var(--silver-400)}.btn--sm{min-height:36px;padding:var(--s2) var(--s4);font-size:var(--t-micro)}.verdict{display:inline-flex;justify-self:start;align-self:start;width:fit-content;align-items:center;gap:.5em;padding:.3em .7em .3em .55em;border-radius:var(--radius-s);font-family:var(--font-mono);font-size:var(--t-micro);font-weight:600;letter-spacing:.06em;border:1px solid;white-space:nowrap}.verdict__glyph{font-size:1em;line-height:1}.verdict--pass{color:var(--pass);background:var(--pass-wash);border-color:var(--pass-line)}.verdict--fail{color:var(--fail);background:var(--fail-wash);border-color:var(--fail-line)}.verdict--unknown{color:var(--unknown);background:var(--unknown-wash);border-color:var(--unknown-line)}.tag{display:inline-flex;align-items:center;gap:.45em;font-family:var(--font-mono);font-size:var(--t-micro);letter-spacing:.08em;font-weight:600;padding:.24em .6em;border-radius:var(--radius-s);border:1px solid var(--hairline-strong);color:var(--silver-200);background:var(--ink-800);white-space:nowrap}.tag:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;flex:none}.tag--IMPLEMENTED{color:var(--m-implemented);border-color:var(--pass-line)}.tag--DEMO{color:var(--m-demo);border-color:#46c8d46b}.tag--REFERENCE{color:var(--m-reference);border-color:#8b6cf06b}.tag--SPEC{color:var(--m-spec);border-color:#6a9cff6b}.tag--PLANNED{color:var(--m-planned);border-color:var(--hairline-strong)}.tag--NO_CONSTA{color:var(--m-noconsta);border-color:var(--unknown-line)}.plain{margin-top:var(--s5);padding:var(--s4) var(--s5);background:var(--blue-wash);border-left:2px solid var(--blue-electric);border-radius:0 var(--radius) var(--radius) 0}.plain__label{display:block;font-size:var(--t-micro);letter-spacing:var(--track-tag);text-transform:uppercase;color:var(--blue-bright);font-weight:700;margin-bottom:var(--s2)}.plain p{color:var(--silver-100);margin:0}.plain p+p{margin-top:var(--s3)}.mono-data{font-family:var(--font-mono);font-size:var(--t-code);color:var(--cyan);overflow-wrap:anywhere;word-break:break-all;line-height:1.5}pre{background:var(--ink-900);border:1px solid var(--hairline);border-radius:var(--radius);padding:var(--s4);overflow-x:auto;max-width:100%;color:var(--silver-100);line-height:1.65;-webkit-overflow-scrolling:touch}pre code{background:none;border:0;padding:0;white-space:pre}.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%}table{width:100%;border-collapse:collapse;font-size:var(--t-small)}th,td{text-align:left;padding:var(--s3) var(--s4);border-bottom:1px solid var(--hairline-faint);vertical-align:top}th{color:var(--silver-300);font-size:var(--t-micro);letter-spacing:.09em;text-transform:uppercase;font-weight:600;white-space:nowrap}td{color:var(--silver-200)}.table-wrap td code{overflow-wrap:anywhere}@media(max-width:640px){table.stack thead{display:none}table.stack tr{display:block;border:1px solid var(--hairline);border-radius:var(--radius);padding:var(--s3);margin-bottom:var(--s3);background:var(--ink-850)}table.stack td{display:grid;grid-template-columns:minmax(0,8.5rem) minmax(0,1fr);gap:var(--s3);border:0;padding:var(--s2) 0}table.stack td:before{content:attr(data-label);color:var(--silver-400);font-size:var(--t-micro);letter-spacing:.07em;text-transform:uppercase;font-weight:600}}.reveal{opacity:0;transform:translateY(14px);transition:opacity var(--dur-scene) var(--ease-out),transform var(--dur-scene) var(--ease-out)}.reveal.is-in{opacity:1;transform:none}@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}.is-offscreen *{animation-play-state:paused!important}pre{position:relative;background:linear-gradient(180deg,var(--ink-850),var(--ink-900) 78%);box-shadow:0 14px 34px #00000057,inset 0 1px #a8b4c80f}pre:before{content:"";position:absolute;inset-inline:0;top:0;height:1px;background:linear-gradient(90deg,transparent,var(--cyan),var(--violet),transparent);opacity:.32}.scene-mark__num{color:var(--violet);opacity:.9}.verdict--pass{box-shadow:0 0 0 1px #45c98a1f,0 4px 14px #45c98a24}.verdict--fail{box-shadow:0 0 0 1px #f2606a1f,0 4px 14px #f2606a24}.verdict--unknown{box-shadow:0 0 0 1px #d7a44a1f,0 4px 14px #d7a44a24}.plain{background:radial-gradient(ellipse 120% 140% at 0% 0%,rgba(61,125,255,.16),transparent 64%),linear-gradient(180deg,var(--ink-800),var(--ink-900));border-left-width:2px;border-radius:0 var(--radius-l) var(--radius-l) 0;box-shadow:0 12px 30px #0000004d}.tag{box-shadow:inset 0 1px #ffffff0d}thead th{position:relative}thead th:after{content:"";position:absolute;inset-inline:0;bottom:-1px;height:1px;background:linear-gradient(90deg,var(--blue-electric),transparent 70%);opacity:.5}.rail{border-left:none;padding-left:calc(var(--s5) + 2px);position:relative}.rail:before{content:"";position:absolute;inset-block:0;left:0;width:2px;background:linear-gradient(180deg,var(--blue-electric),var(--violet) 70%,transparent)}.claim__body{background:linear-gradient(180deg,var(--ink-800),var(--ink-900));box-shadow:inset 0 1px #a8b4c80f}.claim{border-left-color:var(--hairline-strong)}.claim:hover{border-left-color:var(--blue-electric)}:focus-visible{box-shadow:0 0 0 4px #3d7dff2e}